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Use of modified diisocyanates for preparing linear thermoplastic polyurethane elastomers having improved properties
Use of modified diisocyanates for preparing linear thermoplastic polyurethane elastomers having improved properties
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机译:改性二异氰酸酯在制备具有改进性能的线性热塑性聚氨酯弹性体中的用途
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摘要
Linear polyurethane elastomers of a polyol component, at least two extender components, and a diisocyanate compound are prepared by reacting the diisocyanate compound with one of the extender components to form a modified diisocyanate component having a functionality of about 2 prior to reacting this modified component with the other components of the elastomer. These new elastomers can be processed at lower temperatures compared to elastomers prepared from similar compositions wherein the isocyanate compound is not modified.
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